Pattern for railway-track structures.



' No. 834,279. PATENTED OCT. so, 1906.

G. M. BRVIN.

PATTERN FOR RAILWAY TRACK STRUCTURES. APPLICATION FILED APR.22.1905.

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To all whom; it may concern:

GEORGE ERVIN, OF JOHNSTOWN,

PENNSYLVANIA, ASSIGNOR To THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

PATTERN FOR RAILWAY-TRACK STRUCTURES.

Specification of Letters Patent.

Patented Oct. 30, 1906.

Application filed April 22, 1905. Serial No. 256,844:-

Be it known that I, GEORGE M. ERVIN, of Johnstown, in the county of Cambria and State of-Pennsylvania, have invented a new and useful Improvement in Patterns for Railway-Track Structures, of which the following is a full, clear, and exact description, reference belng had. to the accompanying drawings, which form a part of this specification.

My invention has relation to patterns for casting railway track structures, such as those described and claimed in my Patent No. 784,735, dated March 14, 1905, 1n which the cast body portion of the structureis provided with diverging arms in which the connecting rail members are pocketed.

The object of my invention is to-provide an adjustable pattern whereby within certain limits the same pattern can be used notwithstanding differences of angle or radius, or both. It has heretofore been proposed. to

- accomplish this object by making the diverging arm portions of the pattern capable of a radial movement with respect to the central body portion. This type of pattern if used in a structure such as shown in my said patent would require the rail ends and also the ends of the intersection-plate to be milled and shaped to a true radial fit. which Would materially increase the cost of making the structure and'would 'ofiset the advantage of the adjustment feature.

My present invention enables the rail ends to be cut at an angle, which angle need not be changed notwithstanding changes in the angle of the structure.

My invention, as above stated, also enables me to take care of changes in the radius gt one or both of the intersecting track memers.

With these objects in view my invention consists in thenovel construction and combination of parts, all substantially as hereinafter described, and pointed out in the appended claims, reference being had to the accompanying drawings, in Which- Figure 1 is a plan view of a pattern embodying my invention; Fig. 2, a horizontal section through one end portion of the same, the section being taken on the line 2 2 of Fig. 5; Fig., 3, a plan view of one end portion of the pattern, showing the arms partially removed; Fig. 4, a perspective view of one of the said arms removed; Fig. 5, a vertical sec tersection-plate.

tion taken on the line 5 5 of Fig. 1; Fig. 6,'a plan view of the removablefoot portlon of the pattern and showing a slight modification; Fig. 7, a partial plan view illustrating different adjustments of one of the arm portions. 1

The letter A designates the central or body portion of the pattern having the core-seat, A for the'core, which forms in the finished casting the seat for the usual hard-metal in:

This body portion has the. angular ends a a, with its floor portion a and base portion a projecting beyond its web portion (1 as shown in Fig. 5.

B designates the adjustable arm members of the pattern, which are formed with their inner ends at the same angle as the ends a of the part A, said inner ends being slotted at b to receive the projecting floor portion a and shouldered at l) to fit the base portion 60?, as clearly shown in Figs. 4 and 5.

Each arm B has a portion b which is a core-print for the core, which forms the railseating pocket in the finished casting. Secured to each of these core-prints is a metallic armor strap O, which is ofiset downwardly to fit the upper surface of the floor a, to which it is secured by means of the bolts '0, which pass through oblong slots c in said floor.

Tog strengthen the pattern and to form a bearing for the nuts of the bolts 0 or some of them, a metal plate D is secured to the under side of the floor.

E designates adjustable braces for secur-- ing and bracing the arms B at the proper ad, justment; Y

Fig. 1 shows the arms B adjusted to the widest angle of which they are capable. To adapt the pattern for use in casting a frog of smaller angle, the bolts 0 are loosened and the arms B at each end of the pattern are moved toward each other, the bolts 0 moving in the slots 0. This movement of the arms B is both inward and endwise. This changes the angle of the inner ends of the arms to a slight extent only, and such change can be readily taken care of by the molder, so that in all cases the rail ends of the track structure can be cut at the same angle. The only break which these adjustments make in the outline of the pattern is a slight break at the outer junction of the arms with the portion A, whlch can be readily taken care of by the molder, or preferably the foot portion of the pattern is divided into four separate pieces h h 72, 71?, as shown in Fig. 6, in which case the only break due to different adjustments is at the points i, which can be still more easily taken care of by the molder. It is frequently desired to use these patterns for structures where one or both of the intersecting tracks of the structure are curved. For this purpose the cores which form the rail-seating pockets are made sufficiently large so as to permit of an adjustment within certain limits of the rails when the latter are seated in such pockets to take care of the curvature thereof. In such case it will be evident that a slight difference will be necessary in the adjustment of the arm members B of the patternthat is to say, the said arms will have to be adjusted to a slightlydifferent position for casting a structure wherein a curved rail is to be seated in-the casting formed by such arms, as will be read.- ily seen by an inspection of Fig. 7, wherein the dotted lines show the adjustment for such a case and the full lines show the corre sponding adjustment where the casting is to be used with the straight rail-arm. This variation of adjustment is permitted by reason of the fact that the slots 0 are somewhat larger than the diameter of the bolt 0.

By constructing the pattern as above described I am enabled to use the same pattern (provided the rail-section is substantially the same) for all variations of angle and radius which are not sufficiently great to require a different pattern for the body portion A, and where the latter must be changed the same arm portions can still be usedthat is to say, the same arm portions B can be applied to different constructions of the'body portion A. I am thus enabled to very largely reduce the number of patterns which the manufacturer of street-railway special work must have in stock.

It will be understood that the particular design of pattern shown in the drawings is illustrative only of my invention and that the invention is generally applicable to track structures having a central portion with proj ecting armportions.

- Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is r 1. The herein-described adjustable pattern for railway-track special work, comprising a body portion, arm portions, adapted to be secured to the said body portion and means for adjusting said arm portions by a lateral and endwise movement thereof.

2. The herein-described adjustable pattern for railway-track special work, comprising a body portion having angular ends, arm portions also having angular inner ends fitting said body portion, and means for adjusting said arm portions by a lateral and. endwise movement thereof.

3. In a pattern for railway-track structures, the combination with a body member having projecting angular end portions, of arm members, and metal straps secured. to the arm members and adjustably secured to the body member for endwise and lateral movement.

4. In a pattern for railway-track structures, the combination with a body portion, of an arm member, and means for securing said arm member to the body portion whereby it may be angularly adjusted by a lateral and endwise movement thereof.

5. In a pattern for railway-track special work, the combination with a body portion, of an arm member ad justably secured to the body portion and. having a core-print for the core which forms the rail-seating pocket of the completed. casting, said core-print being materially larger in section than the section of the rail to be seated in said pocket.

6. In a pattern for railway-track structures, the combination with a pocketed central portion, of arm members having coreprint portions, metallic straps secured to said core-print portions, and means for permitting an endwise and lateral adjustment of said arm members and straps.

7. In an adjustable pattern for railwaytrack structures, the combination of the central body portion, thelaterally and endwise adjustable arm. members, and adjustable braces for adjacent pairs of said. arm members.

8. In an adjustable pattern for railwaytrack structures, the combination with the body portion, of arm portions, and means for changing the adjustment of the arm portions to adapt the pattern to changes in both angle and radius.

In testimony whereof I have affixed my.

signature in presence of two witnesses.

GEORGE M. ERV IN Witnesses:

GEO. H. PARMELEE, H. W. SMITH. 

